Siemens SINUMERIK 840D sl Function Manual page 197

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Axes 1, 2 and 3 belong to one safety area. For these axes, the message "axis

safely referenced" should be output at one NCK–SPL input (INSI) (this means that

the message is output at the input if the message (signal) is present for all 3 axes).

The machine data must be parameterized as follows:

Axis 1: MD 36987: $MA_SAFE_REFP_STATUS_OUTPUT = INSI x

Axis 2: MD 36987: $MA_SAFE_REFP_STATUS_OUTPUT = INSI x

Axis 3: MD 36987: $MA_SAFE_REFP_STATUS_OUTPUT = INSI x

SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition

Connecting Sensors/Actuators

7.1 Safety–related input/output signals

Sinamics s120